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York NL090-300 User Manual

York NL090-300
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505428-YTG-V-0417
Johnson Controls Unitary Products 5
Factory installed disconnect to allow power to be
removed from the unit when performing periodic
maintenance or for service.
Factory installed powered or non-powered 115 volt GFI
outlet.
Factory installed phase monitor to protect the unit from
phase loss or phase reversal.
Benefits
The Predator® condensing units and heat pumps can be
applied on a rooftop or at ground level... due to their ample
sub-cooling capacity which allows them to be located three or
more stories below the evaporator coil.
After assembly, the unit is pressurized with a combination of
Refrigerant R-410A and nitrogen for pressure testing and
additional leak testing. During this pressure test, the
operation of the high pressure control is checked. As the unit
is being evacuated and dehydrated, the operation of the low
pressure control is also checked.
Every compressor, condenser fan motor, crankcase heater,
and electrical control circuit is checked to assure a trouble-
free start-up and years of reliable operation. The condenser
fan guards are vinyl-coated to provide additional rust
protection and to enhance the appearance of the unit.
Compressors are mounted on rubber isolators to reduce the
transmission of vibration. Vertical discharge condenser fans
direct sound upward and away from any surrounding
structures.
All sheet metal parts are constructed of commercial grade
galvanized steel. After fabrication, each part is thoroughly
cleaned to remove any grease or dirt from its surfaces. The
external parts are coated with a powder paint to assure a
quality finish for many years. This UL approved coating
system has passed the 1000 hour, 20% salt spray test per
ASTM Standard B117.
All condensing unit and heat pump models include a 5-year
limited warranty on the compressor(s) and 1-year limited
warranty on all other parts. The matching line of air handling
units carries a 1-year limited parts warranty.
Outdoor Unit Accessories
Coil Guards: Wire-form coil guards for added protection of
outdoor coils. Designed to mount on each side of the product
if required to provide protection from minor impacts or large
debris.
Hail Guards:
Hood type hail guards designed to protect the
outdoor coils from hail. Can be installed on a single side or
both to provide protection from storms that may produce hail.
Low Ambient Kits: Kits designed to allow the cooling only
units to operate between 0°F and 40°F in the cooling mode.
Standard cooling is allowed to 40°F. (Not designed for
operation on heat pump units).
Air Handling Unit Features and Benefits
Features
These air handlers can be arranged for a variety of air
discharge patterns in either the horizontal or vertical position.
Refer to the unit installation instructions for other application
possibilities.
Benefits
Air handling units are designed with two distinct modules to
provide maximum application flexibility. All are shipped as
single packages with the blower module mounted on top of
the coil module. The blower module can be repositioned in
the field to meet a large number of vertical and horizontal
applications.
The 7.5 thru 20 Ton blower module includes the blower
wheels along with factory-mounted motor and drive. The 25
Ton blower module includes the blower wheels with field
mounted motor and drives. All models offer two motor
horsepower options to meet both standard and high static
airflow requirements.
The coil module includes direct expansion coils, 2 in.
throwaway filters with the option to accept 4” filters (25 Ton 2”
only), liquid line solenoid valves for capacity reduction,
thermal expansion valves, distributors and a non-corrosive,
composite condensate drain pan.
Every air handling coil is pressurized with air and leak tested
under water. After the headers are brazed onto the coil and
the coil is installed in the unit, the coil is pressurized with
nitrogen for pressure testing and additional leak testing. After
the coil is evacuated and dehydrated, it is pressurized with a
holding charge of nitrogen for storage and/or shipping.
These air handlers, combined with condensing units, provide
years of quiet, efficient and dependable operation. These
units are manufactured under ISO 9001 Quality System
Certification.
Unit Installation
Units may be bottom-supported or ceiling-suspended and
can be arranged to meet almost any space or duct
requirements. Each unit is available with a choice of blower
motors horsepower and other accessories to make them
suitable for most applications.
Air Handling units from 10 to 20 tons are available in either
two or four pipe configurations. 7.5 and 25 ton are two pipe
(only) configurations. The dual and single circuit options
provide a wide variety of application and unit match-up
possibilities.
Blower Motors:
Different HP motors are available for each
unit to meet almost any air delivery requirement. All motors
are UL approved, have permanently lubricated ball bearings
and are mounted within the insulated cabinet of the units to
minimize the transmission of sound to the surrounding space.
1.5-5 HP motors are inherently protected. 7.5 HP motors
require motor overload protection.
Overload Relay (7.5HP):
These blower motors do not have
inherent protection and require external motor overload
protection. NC/ND240 "F" models Overload Relays are

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York NL090-300 Specifications

General IconGeneral
BrandYork
ModelNL090-300
CategoryAir Handlers
LanguageEnglish

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